The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 02, 1999
Filed:
Aug. 29, 1994
Applicant:
Inventors:
Darryl C Bodine, Lancaster, PA (US);
G Douglas Vernau, Mountville, PA (US);
Assignee:
Armstrong World Industries, Inc., Lancaster, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04B / ;
U.S. Cl.
CPC ...
5250608 ; 5250606 ;
Abstract
A ceiling board has a depression formed in the four corners of the face surface of the ceiling board. When the horizontal flange of one cross runner overlies the horizontal flange of the main runner, the edge of the ceiling board will rest on the flange of the main runner because the overlying runner is accommodated in the corner depression.